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    "cli": "codex exec resume --skip-git-repo-check --dangerously-bypass-approvals-and-sandbox --json -m gpt-6-astra -c model_reasoning_effort=\"max\" 01a0df0b-faac-7661-a259-543dd24d004b -- # Continue Hearth: prove extensibility through new compositions\n\nContinue implementing in this existing session and workspace. This is a new authorized\ndevelopment phase after your completed first delivery. Do not restart the project or stop\nmerely because the original task was completed. Retain all original R01-R30 requirements\nand accepted design ideas unless a change below explicitly supersedes them.\n\nThe first delivery is a useful executable architecture: shared component contracts,\nauthority, transactions, automatic structural provenance, terrain adaptation, and paired\npersistence all work on its finite test set. An external report reran all 134 tests and\nexecuted the unchanged library in Pyodide. Eleven browser executions matched native\nsemantic content, principal signatures, and glass queries. Six downloaded artifact pairs\nalso preserved their complete structural nodes. Preserve this functionality and portability.\n\nThe major remaining weakness is expressive breadth. Most shipped buildings use a small\ngrid-room vocabulary with bays 9/11/13 and bounded gables. Settlement organization is an\nopposed street with spine/loop paths. Contact adaptation mostly chooses between two\nstrategies. The 18 principal signatures in 24 building samples and 9 successes in 32 stress\ninputs are useful evidence, not proof of a broadly expressive architecture or distribution.\n\nImplement improvements, not just a proposal, more documentation, or more seed samples of\nthe same narrow programs. Code length is not a target. Favor a clear, extensible library,\nlightweight high-level clients, working validation, and attractive generated results.\n\n## 1. Test the existing abstraction before changing it\n\nRecord a concise public API baseline and its module hashes before modifying the kernel.\nImplement new components in a separate extension package using documented public contracts.\nUse these as concrete probes:\n\n- A diagonal bridge with walkable circulation, railings, and endpoint/support adaptation.\n- A wall or boundary that follows a curve or spline and exposes useful attachment interfaces.\n- A corridor or walkway connecting two already placed buildings through their public ports,\n  including a composition crossing water or uneven terrain.\n\nThese are reusable component examples, not three new hardcoded building/environment families.\nUse shared geometric structures where helpful: splines or polylines, graphs, fields, local\nframes, spatial indexes, and constraint/effect records are all appropriate. Choose the\nrepresentation deliberately; do not add structures just to check off their names.\n\nStart with the kernel unchanged. If an extension reveals a real missing capability, record\nthe failing composition or contract test first. Then make the smallest coherent, general\nprotocol improvement, documenting the API delta and why extension-only code was insufficient.\nDo not evade a limitation through private-state access, direct block-store mutation, client\ngeometry repairs, handwritten provenance, or a kernel branch keyed to an example name.\n\nA self-authored extension is an extension exercise, not an independent audit. Describe its\nevidence honestly. The important result is whether clients and other components can use\nthe new behavior through public interfaces without knowing its private geometry.\n\n## 2. Broaden meaningful architectural composition\n\nUse these capabilities in lightweight new building and settlement compositions. Move beyond\nthe same opposed street layout: let explicit graphs, environmental observations, public\nconnections, and spatial constraints drive placement and circulation. Demonstrate materially\ndifferent massing and spatial organization, not just colors, names, transforms, or extra\ndecorations. Extend the shipped architectural vocabulary where needed rather than hiding\nlarge one-off generators behind a short wrapper.\n\nKeep environments compositional and generic. A flat site, shore, slope, or channel should\narise from general operations/parameters rather than an enumerated environment selector.\nGenerate and freeze the relevant environment before placing structures. Respect locked\nprincipal intent and edit permissions. Where adaptation fails, improve general contact or\nconnection rules when justified; do not simply widen limits, remove validators, move locked\nbuildings, flatten the whole terrain, or resample away difficult inputs.\n\nKeep authority directional and local, preserve existing consumers, maintain whole-object\nconsistency, and validate tentative compositions before committing. New components must\nparticipate in automatic instance ownership, typed relationships, precise current-cell\nqueries, transforms, replacement/deletion, and atomic rollback through the same infrastructure.\n\n## 3. Verify and inspect actual results\n\nKeep every existing test. Retain the completed first-phase evidence and distinguish new\nresults from it, for example under reports/extension-corpus and samples/extensions.\nDo not rewrite earlier evidence to make the new implementation look better.\n\nAdd focused positive and deliberately broken cases for each new capability: disconnected\nendpoints, incompatible ports/frames, missing support, blocked headroom, permission overflow,\nstale ownership after replacement, and failed-candidate rollback. Validate actual blocks/NBT\nand relevant companion records rather than only declared plans.\n\nExercise multiple seeds and independent environment/structure inputs, including parameter\nboundaries and compositions not used to implement the primitives. State the supported domain\nand sampling recipe before assessment. Retain all failures, incompatibilities, and budget\nexhaustion; separate input success from candidate acceptance. Track principal architectural\nsignatures separately from contact adaptations and cosmetic variation.\n\nRender and inspect representative complete compositions from several sides and with interior\nor circulation cutaways. Correct visible problems through reusable rules. Show that bridges\nand corridors connect usable entrances and that curve-following geometry has coherent joins.\nPreserve semantic export/reload, deterministic scoped seeds, exact structural inspection,\nand the original public default and --seed/--output CLI contract. Run the full regression suite\nand the new assessment before claiming completion. Do not weaken tests to obtain a pass.\n\nUpdate ARCHITECTURE.md, GENERATOR.md, and the requirement/evidence ledger to describe the final\nimplementation and real limitations. End with what improved, which interfaces changed, what\nstill requires private knowledge or remains constrained, and actual test/render results.\nNo new HTML report, viewer, deployment, or reference-generator reuse is needed in this phase.\n",
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